A common cause of debate is whether you can run "Romex" in pipe. The NEC, however, specifies that the material be protected from damage, and can even require a pipe sleeve where passing through a floor.
"The Electric Kid" has sent in these two pics from his home; it seems that whoever ran the wire did not consider whether the (relatively thin) panels might be a cause for abrasion to the cables.
The holes are in the side "walls" of the storage space. It's behind a knee wall in a soffit/attic, and it is used for storage. In pic one, the cables go into a dead space, then somehow maneuvers into the garage. In pic two, they go into another storage space, which I don't have pics of yet.
Is there anyone on board who knows how to fly a plane?